Bash can't find, PS1 and HISTSIZE

[ktb <xyf@inetnebr.com>]

I have freshly installed Slink and put the following lines in my
~.bashrc :
________________________
case $TERM in
     xterm*)
         PS1 ="\[\033]0;\u@\h: \w\007\]\w\$ "
         ;;
     *)
         PS1 ="\w\$ "
         ;;
esac


HISTSIZE =1000
_________________________

I get the following error when I open an xterm,

bash: PS1: command not found
bash: HISTSIZE: command not found
bash-2.01$ 

I don't understand this.  Both commands worked in my last Slink system. 
I checked the list archives and didn't find anything.  Anyone know how
to fix this?
Thanks,
kent